Today | Weather | Wednesday, March 18, 2026

Weather in Eugene, Oregon

12:20 AM
Now
Cloudy Night
48° F
Feels Like 46°
Precipitation 0 %
Wind 6 mph
Humidity 85 %
Today
Cloudy Weather
Day 73°
Night 41°
Precipitation 1 %
Wind 7 mph
UV Index (0 - 11+) 4

Eugene Weather Forecast Updated

3 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 18, 2025)
Partly Sunny with Showers

Day

54°

Night

36°

Wind

7 mph

UV Index

3

Precipitation

65 %

Air Quality in Eugene

NOW
10 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 2.31 µg/m³
PM10 3.25 µg/m³
O3 0.010 ppm
NO2 2.1 ppb
SO2 0 ppb
CO 0.13 ppm
NH3 1.23 µg/m³
NO 0.05 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.52.31 µg/m³
PM103.25 µg/m³
O319.91 µg/m³
NO23.97 µg/m³
SO20.12 µg/m³
CO147.59 µg/m³
NH31.23 µg/m³
NO0.05 µg/m³